//
//  XHQBaseCollectionVC.m
//  西楚网
//
//  Created by 徐汉卿 on 16/6/28.
//  Copyright © 2016年 徐汉卿. All rights reserved.
//

#import "XHQBaseCollectionVC.h"

@implementation XHQBaseCollectionVC


//- (UICollectionView *)collectionView
//{
//    if (!_collectionView) {
//        _collectionView = [[UICollectionView alloc] init];
//    }
//    return _collectionView;
//}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor whiteColor];
    
    //1.初始化layout
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    //设置collectionView滚动方向
    //    [layout setScrollDirection:UICollectionViewScrollDirectionHorizontal];
    //设置headerView的尺寸大小
//    layout.headerReferenceSize = CGSizeMake(self.view.frame.size.width, 100);
    //该方法也可以设置itemSize
//    layout.itemSize =CGSizeMake(110, 150);
    
    //2.初始化collectionView
    self.collectionView = [[UICollectionView alloc] initWithFrame:self.view.bounds collectionViewLayout:layout];
    [self.view addSubview:self.collectionView ];
    self.collectionView .backgroundColor = [UIColor clearColor];
    
    //3.注册collectionViewCell
    //注意，此处的ReuseIdentifier 必须和 cellForItemAtIndexPath 方法中 一致 均为 cellId
    [self.collectionView  registerClass:[self.cellClassXHQ class] forCellWithReuseIdentifier:@"cellId"];
    
    //注册headerView  此处的ReuseIdentifier 必须和 cellForItemAtIndexPath 方法中 一致  均为reusableView
    [self.collectionView  registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"reusableView"];
    
    //4.设置代理
    self.collectionView .delegate = self;
    self.collectionView .dataSource = self;
    
    
    
}



-(void)setNeedXiaLa:(BOOL)needXiaLa
{
    WS(weakSelf);

    
    if (needXiaLa) {//需要刷新
        self.collectionView.mj_header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
            NSLog(@"基类控制器   下拉tableView的block");
            if (weakSelf.xiaLaSEL) {
                weakSelf.xiaLaSEL();
                
            }
            
        }];
    }else{//不需要刷新
        
        [weakSelf.collectionView.mj_header removeFromSuperview];
    }
}



-(void)setNeedShangLa:(BOOL)needShangLa
{
    
    
    WS(weakSelf);
    if (needShangLa) {//需要刷新
    
//        self.collectionView.mj_footer.automaticallyHidden = YES;
        self.collectionView.mj_footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{
            NSLog(@"基类控制器   下拉tableView的block");
            if (weakSelf.shangLaSEL) {
                weakSelf.shangLaSEL();
//                [self.collectionView.mj_footer endRefreshingWithNoMoreData];
            }
            
        }];
    }else{//不需要刷新
        
        [weakSelf.collectionView.mj_footer removeFromSuperview];
    }

}


#pragma mark collectionView代理方法
//返回section个数
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
    return 1;
}

//每个section的item个数
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return [self.dataArrayM count];
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    
    UICollectionViewCell *cell = (UICollectionViewCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"cellId" forIndexPath:indexPath];
    
//    cell.backgroundColor = [UIColor blueColor];
//    id model = self.dataArrayM[indexPath.row];
//    [cell setValue :model forKey:@"model"];
    
    return cell;
}

//设置每个item的尺寸
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return self.cellSize;
}

//footer的size
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForFooterInSection:(NSInteger)section
//{
//    return CGSizeMake(10, 10);
//}

//header的size
//- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
//{
//    return CGSizeMake(10, 10);
//}

//设置每个item的UIEdgeInsets
//- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section
//{
//    return UIEdgeInsetsMake(10, 10, 10, 10);
//}
//
////设置每个item水平间距
//- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section
//{
//    return 10;
//}


//设置每个item垂直间距
- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section
{
    return 0;
}

//通过设置SupplementaryViewOfKind 来设置头部或者底部的view，其中 ReuseIdentifier 的值必须和 注册是填写的一致，本例都为 “reusableView”
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
    UICollectionReusableView *headerView = [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"reusableView" forIndexPath:indexPath];
    headerView.backgroundColor =[UIColor grayColor];
    UILabel *label = [[UILabel alloc] initWithFrame:headerView.bounds];
    label.text = @"这是collectionView的头部";
    label.font = [UIFont systemFontOfSize:20];
    [headerView addSubview:label];
    return headerView;
}

//点击item方法
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
//    UICollectionViewCell *cell = (UICollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
    
    
}






#pragma mark -懒加载


- (NSMutableArray *)dataArrayM
{
    if (!_dataArrayM) {
        _dataArrayM = [[NSMutableArray alloc] init];
    }
    return _dataArrayM;
}



-(Class)cellClassXHQ
{
    if (_cellClassXHQ == nil) {
        return [UICollectionViewCell class];
    }
    return _cellClassXHQ;
}





-(CGSize)cellSize
{
    if (_cellSize.width ==0 ) {
        return CGSizeMake(100, 100);
    }
    return _cellSize;
}
@end
